Hi Christopher, how are you? We're so sorry to hear that you wanted 10AWG solar cable. Firstly, but the product you chose was 12AWG cable with that price, and you didn't mention the correct size of cable you needed, so we sent 12AWG solar cable to you according to your order. Secondly, the Alibaba system can't provide the further details to select cable size when we released all products in the store. So we must publish each size of our product in one item link. For example, we have 2.5mm 4mm 6mm 10mm 16mm solar cable, we must publish them for one by one separately. So all buyers must check carefully the item that you need, or tell us what you required. So that we can send the correct products. Thanks. This is the bug of Alibaba system, not us. I hope you can understand. Thank you dear Christopher. Best regards.